[mythtv-users] Can't adjust contrast, brightness etc in Mythtv .20

Bruce Markey bjm at lvcm.com
Wed Jan 17 19:04:53 UTC 2007


Daniel Kristjansson wrote:
> On Wed, 2007-01-17 at 00:01 -0800, Robert Tsai wrote:
>> On Tue, Jan 16, 2007 at 07:40:37PM -0800, Bruce Markey wrote:
> 
>>> Section "Module"
>>>
>>> ...
>>>     Load           "v4l"
>>> ...
>>>
>>> EndSection
>>>
>>> in your /etc/X11/xorg.conf or whatever file is used for your
>>> X configuration.
>> This didn't do anything for me, either.
> 
> Weird. This and the XvmcUsesTextures are the only common

Agreed, this is usually easily fixed.

> problems. Can you try downgrading the nVidia drivers to
> a 7xxx series driver (with the XvMCUsesTextures set to false).
> If that works, this is probably a driver issue, otherwise it
> is probably an X or MythTV issue.

Robert, definitely follow these suggestions but for your sake
(you don't need to convince me =) check your X log file to see
if v4l loaded properly:

Good:

$ less /var/log/Xorg.0.log

(II) LoadModule: "v4l"
(II) Loading /usr/lib/xorg/modules/drivers/v4l_drv.so
(II) Module v4l: vendor="X.Org Foundation"
        compiled for 7.1.1, module version = 0.1.1
        ABI class: X.Org Video Driver, version 1.0
(II) LoadModule: "vbe"
(II) Loading /usr/lib/xorg/modules/libvbe.so
(II) Module vbe: vendor="X.Org Foundation"
        compiled for 7.1.1, module version = 1.1.0
        ABI class: X.Org Video Driver, version 1.0
(II) LoadModule: "nvidia"
(II) Loading /usr/lib/xorg/modules/drivers/nvidia_drv.so
(II) Module nvidia: vendor="NVIDIA Corporation"
        compiled for 4.0.2, module version = 1.0.9746
        Module class: X.Org Video Driver

Other:

$ less /var/log/Xorg.0.log

(II) LoadModule: "v4l"
(WW) Warning, couldn't open module v4l
(II) UnloadModule: "v4l"
(EE) Failed to load module "v4l" (module does not exist, 0)
(II) LoadModule: "vbe"
(II) Loading /usr/lib/xorg/modules/libvbe.so
(II) Module vbe: vendor="X.Org Foundation"
        compiled for 7.1.1, module version = 1.1.0
        ABI class: X.Org Video Driver, version 1.0
(II) LoadModule: "nvidia"
(II) Loading /usr/lib/xorg/modules/drivers/nvidia_drv.so
(II) Module nvidia: vendor="NVIDIA Corporation"
        compiled for 4.0.2, module version = 1.0.9746
        Module class: X.Org Video Driver

--  bjm



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